vm.export.

packages/xo-cli/README.md

@@ -58,6 +58,18 @@ E.g., adding a new server:
 
 The return value is the identifier of this new server in XO.
 
+##### VM export
+
+```
+> xo-cli vm.export vm=a01667e0-8e29-49fc-a550-17be4226783c > vm.xva
+```
+
+##### VM import
+
+ ```
+> xo-cli vm.import host=60a6939e-8b0a-4352-9954-5bde44bcdf7d < vm.xva
+```
+
 ## Contributing
 
 Contributions are *very* welcome, either on the documentation or on

packages/xo-cli/package.json

@@ -25,12 +25,20 @@
   "dependencies": {
     "bluebird": "^2.2.2",
     "chalk": "^0.5.1",
-    "exec-promise": "^0.3.0",
+    "event-to-promise": "^0.3.1",
+    "exec-promise": "^0.5.0",
+    "got": "^1.2.0",
+    "human-format": "^0.1.3",
     "l33teral": "^2.0.4",
+    "lodash.assign": "^2.4.1",
     "lodash.foreach": "^2.4.1",
+    "lodash.isobject": "^2.4.1",
+    "lodash.keys": "^2.4.1",
     "lodash.pairs": "^2.4.1",
     "mkdirp": "^0.5.0",
     "multiline": "^0.3.4",
+    "progress-stream": "^0.5.0",
+    "sent": "^1.1.0",
     "xdg": "^0.1.1",
     "xo-lib": "^0.2.0"
   },

packages/xo-cli/src/cli.js

@@ -2,13 +2,24 @@
 
 //====================================================================
 
+require('superstack');
+
 var Bluebird = require('bluebird');
 Bluebird.longStackTraces();
 
+var resolveUrl = require('url').resolve;
+
 var chalk = require('chalk');
+var eventToPromise = require('event-to-promise');
 var forEach = require('lodash.foreach');
+var getKeys = require('lodash.keys');
+var got = require('got');
+var humanFormat = require('human-format');
+var isObject = require('lodash.isobject');
 var multiline = require('multiline');
 var pairs = require('lodash.pairs');
+var progressStream = require('progress-stream');
+var sent = require('sent');
 var Xo = require('xo-lib');
 
 //--------------------------------------------------------------------
@@ -37,6 +48,35 @@ function connect() {
   });
 }
 
+function pipeWithErrors(streams) {
+  var current;
+
+  forEach(streams, function (stream) {
+    if (!stream) {
+      return;
+    }
+
+    if (current) {
+      current.on('error', function forwardError(error) {
+        stream.emit('error', error);
+      });
+      current = current.pipe(stream);
+    }
+    else {
+      current = stream;
+    }
+  });
+
+  return current;
+}
+
+function printProgress(progress) {
+  console.warn('%s downloaded at %s/s',
+    humanFormat(progress.transferred),
+    humanFormat(progress.speed)
+  );
+}
+
 function wrap(val) {
   return function wrappedValue() {
     return val;
@@ -186,7 +226,9 @@ function call(args) {
     if (!(matches = arg.match(PARAM_RE))) {
       throw 'invalid arg: '+arg;
     }
+    var name = matches[1];
     var value = matches[2];
+
     if (value === 'true') {
       value = true;
     }
@@ -194,11 +236,47 @@ function call(args) {
       value = false;
     }
 
-    params[matches[1]] = value;
+    params[name] = value;
   });
 
+  var baseUrl;
   return connect().then(function (xo) {
+    baseUrl = xo._url;
     return xo.call(method, params);
+  }).then(function handleResult(result) {
+    var keys, key, url;
+    if ((
+      isObject(result) &&
+      (keys = getKeys(result)).length === 1
+    )) {
+      key = keys[0];
+
+      if (key === '$getFrom') {
+        url = resolveUrl(baseUrl, result[key]);
+
+        return eventToPromise(pipeWithErrors([
+          got(url),
+          progressStream({ time: 1e3 }, printProgress),
+          process.stdout,
+        ]), 'finish');
+      }
+
+      if (key === '$sendTo') {
+        url = resolveUrl(baseUrl, result[key]);
+
+        return new Bluebird(function (resolve, reject) {
+          sent(url, process.stdin, function (error, result) {
+            if (error) {
+              reject(error);
+              return;
+            }
+            resolve(result);
+          });
+        });
+      }
+    }
+
+    return result;
   });
-};
+}
 exports.call = call;

packages/xo-cli/src/config.js

@@ -2,14 +2,14 @@
 
 //====================================================================
 
-var fs = require('fs');
+var promisify = require('bluebird').promisify;
 
-//--------------------------------------------------------------------
+var readFile = promisify(require('fs').readFile);
+var writeFile = promisify(require('fs').writeFile);
 
-var _ = require('lodash');
+var assign = require('lodash.assign');
 var l33t = require('l33teral');
-var mkdirp = require('mkdirp');
+var mkdirp = promisify(require('mkdirp'));
-var Promise = require('bluebird');
 var xdg = require('xdg');
 
 //====================================================================
@@ -17,10 +17,6 @@ var xdg = require('xdg');
 var configPath = xdg.basedir.configPath('xo-cli');
 var configFile = configPath +'/config.json';
 
-var mkdirp = Promise.promisify(mkdirp);
-var readFile = Promise.promisify(fs.readFile);
-var writeFile = Promise.promisify(fs.writeFile);
-
 //====================================================================
 
 var load = exports.load = function () {
@@ -43,7 +39,7 @@ var save = exports.save = function (config) {
 
 exports.set = function (data) {
   return load().then(function (config) {
-    return save(_.extend(config, data));
+    return save(assign(config, data));
   });
 };